The climate of Montana (United
States of America)
The state of Montana is located on the border with Canada. In this
‘Treasure State’ Indian Reserves, mountains in the west and several
large lakes dominate the landscape. The western part of Montana is
part of the Rocky Mountains. The eastern part is much flatter, many
forests can be found here. In the mountains many beautiful valleys can
be found. Because of its varied landscape Montana attracts many nature
lovers and eco tourists. Montana is the fourth largest state in the
United States. Because of this the landscape is very diverse and the
state has several different climate types. The central part of Montana
has a cold steppe climate (type BSk according to the Köppen climate
classification). In the western part a moderate continental climate
changes into a high mountain climate via a moderate continental
climate. Large differences in precipitation figures can be recorded as
On average Montana gets 400 millimeters of annual precipitation.
However, the valleys in the eastern part of the mountains can only
record 300 millimeters of annual precipitation. The city of Lonepine
for instance has an annual precipitation figure of 291 millimeters and
the city of Deer Lodge can record only 279 millimeters of annual
precipitation. However, in the mountains high precipitation figures
can be recorded. Average annual precipitation figures of 2,000-2,700
millimeters (Grinnell Glacier) are not uncommon here. Summers in
Montana are fairly warm, with the exception of the highest mountain
peaks. In the city of Billings maximum temperatures of 30 degrees
Celsius (86 degrees Fahrenheit) are not uncommon in July and August.
Winters are cold in Montana. From December till February subzero
temperatures, snowfall and ice forming on the lakes are not uncommon.
When there is a strong northerly current ice cold air from the Arctic
Climate information of places in Montana
The climate information given on this page is only brief. Specific
information on weather and climate can be found on the pages per
region or city. The following climate information is available for
Throughout Montana several climate figures and temperatures can be
recorded. The figures below are for Helena and cannot be seen as an
average for this state. For climate figures for other places and
regions in Montana please, visit the individual climate pages.
More climate information
Climate tables are useful but they don’t give an overall picture of
the climate and possible weather conditions during a period of time.
How high the chances are of hot or cold weather or hurricanes can
often not be found in these tables. This is why we offer extra climate
information per month. The figures below apply to Helena. For climate
figures on specific regions and places please, visit the relevant
individual climate pages.
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.